4Pcs/set, 20sets per box, 80Pcs in total. 4Pcs/set, 50sets per box, 200Pcs in total. The sale of this item may be subject to regulation by the U.Food and Drug Administration and state and local regulatry agencies. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical, Lab & Dental Supplies\Orthodontic Brackets, Bands & Buccal Tubes". The seller is "sinodental" and is located in this country: CN. This item can be shipped worldwide.